Leaven: Baker's Percentage
Bread Ratio Calculator & Notes
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Doing baker’s math by hand is a pain. Spreadsheets aren’t much better. Leaven handles the numbers so you can focus on baking.
It’s a simple app built around baker’s percentages. You enter your recipe once, with all ingredients expressed as a percentage of total flour weight, and it scales cleanly up or down. Whether you’re baking a single loaf or prepping for a pop-up, the math just works.
No signups, no fuss. Just open the app and start baking.
What Leaven does:
- Scale recipes fast — change ingredient weights or percentages, and Leaven updates everything instantly. Dial in a flour weight, total weight, or ingredient weight to scale up and down.
- Save and edit recipes — name your recipes, tweak them anytime, and keep everything organized.
- Track your bakes — Leaven saves a snapshot each time you bake in each recipe's Notebook. Add notes, see what worked, and improve your process.
- Understand your ratios — Leaven speaks in baker’s percentages, with flour always at 100%. You get consistent, predictable results.
- Add notes and variations — keep notes on oven settings, fermentation time, hydration, etc. Duplicate recipes to test new ideas without losing the original.
- Share easily — export recipes in markdown or as Leaven links for other users to import.
- Synced privately — all your data is stored in an iCloud container that only you can access.
If you bake often, Leaven’s a no-brainer. It gets the math out of your way, so you can focus on the bread.
Terms of use / EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://hereand.co/leaven/privacy
A brand new coat of glassy iOS 26 paint.
The developer, Here & Co., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Here & Co. LLC
- Size
- 3 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 18.1 or later.
- iPhone
Requires iOS 18.1 or later. - Mac
Requires macOS 15.1 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.1 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Gold $9.99
- Silver $4.99
- Bronze $0.99
- Copyright
- © 2025 Here & Co. LLC